Screw-cap for collapsible tubes.



- F. MGINTYRE. SGRW CAP FOR GOLLAPSIBLE TUBES.

, APPLIQATION FILED H1319, 1909.

944,203. Patented Dec. 21, 1909.

FFI li FRANK MCINTYRE, 0F NEW YORK, N. Y.

SCREV-CAP FOR COLLAPSIBLE TUBES. f

Application filed February 19, 1909. Serial No. 478,859.

To all wwm it may concern:

Be it known that I, FRANK MCINTYRE, of the city, county, and State of New York, have Ainvented a certain new and useful Improvement in Screw-Caps for Collapsible Tubes, of which the following is a specification.

It is the object of this` invention `to provide a screw cap for collapsible tubes which need not be removed from the neck of the tube in order to permit the contents of the latter to be squeezed out. I am aware that this is not broadly new with ine. y

My invention consists in a construction for that purpose which will rst be described in connection with the accompanying drawings, and will then be more particularly pointed out in t-he claim.

In the drawin s-Figure 1 is a perspective view of a collapsible tube and screw cap embodyin my invention. Fig. 2 is an axial section o the same with the cap screwed down so as to close the tube.

A is a collapsible tube of any known or preferred construction; B is its externally screw threaded tubular neck; and C is the internally threaded cap which screws upon the neck.

The neckB is of cylindrical exterior and has its outer end closed by a head I), 011 which there is a central knob b2 of half round or equivalent shape. The head I is pierced by perforations b-n this instancey space betweenit and the neck-has in it a circular central opening c which is entered and lilled by the knob"` b2 when the cap is screwed home. The top of the capI screws Specification of Letters-latent. y

Patented Dec. 21, 1; 'la

vany escape of its contents through the h'olcs b, and 1s racti'cally sealed. At the same time, a halt) turn of the cap from this posi' tion will sulice to open thevholes b o, to allow the material to be squeezed out, the same passing out through the narrow annular sl1t between the margin of the opening c and the knob b2, and assuming the form pf a Solid cylinder as it passes beyond the atter.

The device is cheap, simple and ellicient;

and the tube is sealed perfectly when the ca -is screwed home.

hat I claim herein as new secure by Letters Patentl iscollapsible tube having a cylindrical screw threaded neck closed at its outer end by a solid head provided with holes b in the end thereof and a central knob b2, and a screw threaded cap lhaving in its top a and desire to .central hole c to receive the knob b2, the

arrangementv being such that when the cap is screwed home it will close the holes b in the head, while, in turn, its hole c will be closed by the knob b2, substantially as and for the purposes vhereinbefore, set forth.

'In testimon whereof I ax my signature in presence o two witnesses. 'l

' FRANK MCINTYRE.

Witnesses:

Saumur. KBAUS,

P. H. BUCKMABTER. 

